Bolt-hole cleaner



Feb. 26 1924. 1,484,721

E. E. KOHOUT EK BOLT HOLE CLEANER Filed April 30 1923 Patented Feb. 26, 1924.

' hi t If EMILE. KOHOUTEK, 0F OIVIAI'IA,'NEBRASKA.

BOLT-HOLE CLEANER.

Application filed April 30,1923.

To all whom it may concern:

Be it known that I, EMIL E. KoHoU'rnK, a citizen of the United States, residing at Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvements in a Bolt-Hole Cleaner, of which the following is a specification.

This invention has for its object to provide a tool of such construction that silt, dust, ashes or other like substances may be conveniently removed from threaded recesses or bolt-holes, the tool being particularly useful in repair shops or garages where cars or engines are dismantled and cleaned. Another object is to provide a tool of simple construction so that it may be practically and economically manufactured.

The invention broadly includes a plurality of discs differing in diameters, corresponding approximately to the size or diameters of the recesses or holes to be cleaned, and a handle having a rectilinear part adapted to be removably secured to any one of the discs, at the center thereof, and to be rotated for cleaning and removing the silt or other sub stance from the hole, each disc being provided with a blade extending from its edge to or somewhat beyond the longitudinal axis of its handle.

The invention consists of the novel construction, combination and arrangement of parts as described herein and claimed, and as illustrated in the accompanying drawing, wherein,

Fig. 1 is a view in side elevation of a tool illustrating one embodiment of the invention. Fig. 2 is a plan view of the same, the handle being in transverse section. Fig. 3 is a plan view of a disc, the coupling-plate being removed. Fig. 1 is an edgewise view of the disc shown in Fig. 3. Figs. 5 and 6 illustrate discs of varying diameters. Fig. 7 is a sectional view through a metallic part provided with a bolt hole, the cleaner-tool being shown in operative position.

Referring now to the drawing for a more particular description, numerals 8 indicate discs which may have any required thickness or diameter, said discs preferably being of various diameters corresponding approximately to the diameters of bolt-holes to be cleaned, one of the holes being indicated at 9.

Numeral 10 indicates the rectilinear part of a handle adapted to be rotated for rotating any one of the discs, and any suitable Serial No: 635,760;

means may-be provided for removablyconnecting a disc with the handle, the-means herein shown being an angular bracket or coupling-plate 11 which is secured to and which projects above the top of the disc, said plate being provided with a slot 12 for receiving the prongs 13 which are provided for the lower end of the handle.

Each disc is provided with a segmental recess 14, and one of the walls of the recess is employed in forming a radially disposed blade 15, the important feature being that this blade extends to the middle of the disc to lie in the plane of the handle, a feature of advantage being, as explained hereinafter, that the blade extends somewhat beyond the longitudinal axis of the handle, the lower end of the handle being disposed above the blade.

In operation, the handle may be coupled with the disc by inserting its prongs 13 in the slot 12, and the disc may be rotated by rotating the handle, the prongs 13 moving into engagement with lugs 16 which are provided for the discs, and after the handle, with a disc attached, has been placed in an aperture or recess 9, its rotatable movement will cause the silt, dust, ashes or other substance to move through the recess 14 to the top of the disc, to be removed by a removal of the device from the bolt-hole.

Since the handle is disposed with its axis co-incident with the axis of the disc when mounted thereon, and since the radially disposed blade extends inwardly from the edge of the disc to be disposed in the plane of the handle and at the longitudinal axis thereof, said blade, in operation, will cause a removal of all material at the central part of the aperture 9, and this feature is important. Also, in order that the material at the center of the aperture 9 may move upward freely through the recess 141, said recess and blade, as clearly shown in Fig. 2, extend somewhat beyond the axis of the handle.

While I have shown and described details of construction, I do not wish to be understood as limiting myself in this respect, and changes in form, size, proportion and minor details may be made as found to be of advantage, said changes being within the scope of the invention as claimed.

I claim as my invention,-

1. In a bolt-hole cleaner, a disc provided with a segmental recess and having a blade at one of the sides of said recess, a handle having a rectilinear part disposed with its axis in line with the axis of the disc and removably secured thereto, said blade extending inwardly from the circular edge of the disc to lie below and at the longitudinal axis of the rectilinear part of the handle.

2. In a bolt-hole cleaner, the combination with a disc provided with a segmental recess and having a rectilinear blade at one of the sides of said recess, of a handle having a rectilinear part disposed above said blade with its axis in line with the axis of and removably secured to the disc, said blade extending from the edge of the disc beyond the axis thereof and having a part disposed in alinement with the rectilinear part of the handle. In testimony whereof, I have affixed my signature in presence of two Witnesses.

' EMIL E. KOHOUTEK. Witnesses:

HIRAM A. STUReEs, ARTHUR H. S'ronens. 

